Engineering Audits & Inspections

Hutchinson Builders Toowoomba was contracted to deliver portions of the Water Aquifer Injection Trial at QGC’s Woleebee Creek site. Prior to construction, Hutchinson Builders engaged Orana Engineering to perform a design review of all mechanical technical documentation associated with the Pond Transfer Pump Station. The review aimed to determine whether sufficient detailed information had been provided to allow Hutchinson Builders to successfully complete construction. Orana Engineering completed and issued a design review report which detailed recommendations from the review. During construction, Hutchinson Builders also engaged Orana Engineering to perform an inspection of a buried HDPE pipeline and to assess the construction of the pipeline against requirements of engineering drawings and specifications.

Vale at Carborough Downs Coal Mine required quantifying of current and possible future capacities of product conveyors at their coal processing plant in Central Queensland and high level recommendations to achieve increased plant tonnages. Orana Engineering completed an initial site visit to gather the necessary information for review of each of the conveyors. Engineering checks were completed to identify ‘bottle-necks’ in the conveyor design such as motor power, drive equipment, belt curves, GTU mass, belt speed, belt capacity, belt tensions and electrical supply. Orana Engineering issued a detailed report at completion of the study and provided concept level equipment modification recommendations for tonnage ranges advised by Carborough Downs Coal Mine.

BMA Gregory Crinum engaged Orana Engineering to perform an audit and inspection of the Crinum underground mine surface fire water system with respect to providing adequate pressure and flow for the Crinum North conveyor system and stockpile conveyor. Orana Engineering completed a site inspection and audit against the design drawings, with site-verified information then used for compliance assessment in line with Australian Standards. The audit included in-depth assessment of the fire water system to Australian, BMA and site Fire Management Standards. Hydraulic modelling of the fire system was also undertaken to validate existing pressure measurements. Orana Engineering was able to make recommendations regarding compliance and system hydraulic performance, which assisted BMA in improving system capacity.

Orana Engineering was requested by the BMA Projects Department to assist in completing an audit of air, water and wastewater services at BMA Blackwater Mine in Central Queensland. The work was required in order to determine if the addition of new go-line infrastructure would adversely impact the existing mine industrial area services, and if additional infrastructure or infrastructure upgrades were required.